<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Exploding letter</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css">
</head>
<body>
<div class="shaker">
<div id="template" class="dialog">
<div class="dialog-body">
<div id="triangle-wrapper">
<div class="shadow">
<div></div>
</div>
</div>
<button class="stamp hvr-buzz" id="stamp-envelope"></button>
</div>
<div id="info">open me</div>
</div>
<div class="message">
<div class="part-one" id="part-one-message">
<div class="message-header"></div>
<div class="message-text">Dear Harry, <br><br>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
<br><br> I await your owl,<br><br> Klara
</div>
<div class="stamp-wrapper">
<div class="stamp hvr-buzz" id="stamp-footer">H</div>
</div>
<div class="message-footer"></div>
</div>
</div>
</div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.0/jquery.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.6.1/dat.gui.js'></script>
<script src='https://cdn.rawgit.com/josephg/noisejs/master/perlin.js'>
</script>
<script src='letter-script.js'></script>
</body>
</html>
@import url("https://fonts.googleapis.com/css?family=Caveat");
@import url("https://fonts.googleapis.com/css?family=Ledger");
* {
box-sizing: border-box;
}
body,
button,
input {
font-family: "Ledger";
}
body {
background-color: #3a736c;
overflow: hidden;
}
#info {
position: absolute;
font-family: Caveat;
color: #F1CFA0;
padding-top: 15px;
font-size: 5vh;
opacity: 0.7;
}
.shaker {
position: relative;
width: 100vw;
height: 100vh;
}
canvas {
position: relative;
top: 0;
left: 0;
z-index: -10;
}
.dialog {
z-index: 10;
top: 30vh;
transform: translateY(30vh);
margin: 0 auto;
width: 30vw;
background-color: #f1cfa0;
text-align: center;
min-width: 200px;
box-shadow: 10px 10px #254f49;
}
.dialog:after {
content: "";
display: block;
padding-bottom: 0;
}
.shadow {
width: 100%;
height: 0;
padding-left: 50%;
padding-top: 30%;
overflow: hidden;
}
.shadow div {
width: 0;
height: 0;
margin-left: -1000px;
margin-top: -600px;
border-left: 1000px solid transparent;
border-right: 1000px solid transparent;
border-top: 600px solid #f2a71e;
/* box-shadow: 10px 10px #c98510;*/
}
#stamp-envelope {
text-align: center;
border-radius: 100%;
-moz-border-radius: 50%;
-webkit-border-radius: 50%;
width: 0;
height: 0;
padding-left: 13%;
padding-top: 14%;
margin-bottom: 20%;
/* overflow:hidden;*/
margin-top: -12.5%;
background-color: #d34f27;
border: 2px solid #d34f27;
color: #f2a71e;
font-weight: bold;
text-transform: uppercase;
cursor: pointer;
outline: none;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
box-shadow: 2px 3px #93321a;
}
@media screen and (max-height: 400px) {
.dialog {
top: 20vh;
transform: translateY(20vh);
width: 20vw;
}
.stamp.hvr-buzz p {
font-size: 2vw;
margin-left: -2.2vw;
margin-top: -2.8vw;
}
}
.stamp-wrapper {
text-align: right;
margin-bottom: 20px;
margin-right: 20px;
}
#stamp-footer {
display: inline-block;
padding: 16px 25px;
color: #f2a71e;
font-size: 35px;
font-weight: bold;
text-transform: uppercase;
border: 4px solid #d34f27;
-moz-border-radius: 50%;
-webkit-border-radius: 50%;
border-radius: 50%;
text-transform: uppercase;
cursor: pointer;
text-align: center;
outline: none;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
background-color: #d34f27;
}
.stamp:hover {
animation-name: hvr-buzz;
}
.stamp:active {
}
@-webkit-keyframes hvr-buzz {
50% {
-webkit-transform: translateX(3px) rotate(2deg);
transform: translateX(3px) rotate(2deg);
}
100% {
-webkit-transform: translateX(-3px) rotate(-2deg);
transform: translateX(-3px) rotate(-2deg);
}
}
@keyframes hvr-buzz {
50% {
-webkit-transform: translateX(3px) rotate(2deg);
transform: translateX(3px) rotate(2deg);
}
100% {
-webkit-transform: translateX(-3px) rotate(-2deg);
transform: translateX(-3px) rotate(-2deg);
}
}
.hvr-buzz {
display: inline-block;
vertical-align: middle;
-webkit-transform: perspective(1px) translateZ(0);
transform: perspective(1px) translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.hvr-buzz:hover,
.hvr-buzz:active {
-webkit-animation-name: hvr-buzz;
animation-name: hvr-buzz;
-webkit-animation-duration: 0.4s;
animation-duration: 0.4s;
-webkit-animation-timing-function: linear;
animation-timing-function: linear;
-webkit-animation-iteration-count: infinite;
animation-iteration-count: infinite;
}
.message {
display: none;
position: absolute;
width: 400px;
max-height: 65vh;
margin-left: -200px;
left: 50vw;
top: 47vh;
margin-top: -30vh;
}
.part-one {
position: relative;
background-color: #f1cfa0;
max-height: 65vh;
overflow-y: auto;
overflow-x: hidden;
}
.message-header {
width: inherit;
height: 5vh;
background-color: #f2a71e;
}
.message-text {
padding: 40px 30px;
padding-bottom: 0px;
letter-spacing: 1px;
line-height: 25px;
font-family: "Caveat", cursive;
color: #3a736c;
}
.message-footer {
/* position: absolute;*/
bottom: 0;
background-color: #d34f27;
width: 400px;
height: 5vh;
}
#stamp-footer {
/* position: absolute;*/
right: 30px;
bottom: 60px;
padding: 0 0;
padding-top: 10px;
width: 60px;
height: 60px;
margin-top: -34px;
}
#ui {
position: absolute;
left: calc(50vw - 40px);
top: calc(50vh - 40px);
}
.dg.ac {
z-index: 1000 !important;
}
/* Scrollbar edit for chrome just for fun. */
#part-one-message::-webkit-scrollbar-track {
background-color: #254f49;
}
#part-one-message::-webkit-scrollbar {
width: 10px;
}
#part-one-message::-webkit-scrollbar-thumb {
background-color: #427f77;
}
var _createClass = (function() {
function defineProperties(target, props) {
for (var i = 0; i < props.length; i++) {
var descriptor = props[i];
descriptor.enumerable = descriptor.enumerable || false;
descriptor.configurable = true;
if ("value" in descriptor) descriptor.writable = true;
Object.defineProperty(target, descriptor.key, descriptor);
}
}
return function(Constructor, protoProps, staticProps) {
if (protoProps) defineProperties(Constructor.prototype, protoProps);
if (staticProps) defineProperties(Constructor, staticProps);
return Constructor;
};
})();
function _classCallCheck(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a function");
}
}
var options = {
drag: 1,
gravity: 0,
lifespan: 161,
maxSpeed: 100,
maxParticles: 500,
particleColors: ["242, 167, 30", "241, 207, 160", "211, 79, 39"],
particlesPerPress: 400,
jitter: 0,
randomness: 1,
size: 10,
sizeRange: 10,
shrinkSpeed: 0.1
};
var ParticleSystem = (function() {
function ParticleSystem() {
_classCallCheck(this, ParticleSystem);
this.particles = [];
}
_createClass(ParticleSystem, [
{
key: "addParticle",
value: function addParticle(opts) {
for (var i = 0; i < opts.numToAdd; i++) {
this.particles.push(new Particle(opts));
}
while (this.particles.length > options.maxParticles) {
this.removeParticle();
}
}
},
{
key: "removeParticle",
value: function removeParticle() {
this.particles.shift();
}
},
{
key: "update",
value: function update() {
for (var i = 0; i < this.particles.length; i++) {
if (this.particles[i].lifespan > 0) {
this.particles[i].update();
}
}
}
},
{
key: "draw",
value: function draw() {
for (var i = 0; i < this.particles.length; i++) {
this.particles[i].draw();
}
}
}
]);
return ParticleSystem;
})();
var Particle = (function() {
function Particle(opts) {
_classCallCheck(this, Particle);
// How many frames particle will live
this.lifespan = options.lifespan;
// Color
this.color =
options.particleColors[
Math.floor(Math.random() * options.particleColors.length)
];
// Size
this.size = options.size;
this.size += Math.random() * options.sizeRange - options.sizeRange / 2;
// Position and velocity
this.x = opts.x;
this.y = opts.y;
var velXMin = -opts.leftSpread / (this.lifespan / 10);
var velXMax = opts.rightSpread / (this.lifespan / 10);
var velYMin = -opts.topSpread / (this.lifespan / 10);
var velYMax = opts.bottomSpread / (this.lifespan / 10);
var velXRange = velXMax - velXMin;
var velYRange = velYMax - velYMin;
var originLeftPercent =
opts.leftSpread / (opts.leftSpread + opts.rightSpread);
var originTopPercent =
opts.topSpread / (opts.topSpread + opts.bottomSpread);
this.velX = Math.random() * velXRange - velXRange * originLeftPercent;
this.velY = Math.random() * velYRange - velYRange * originTopPercent;
// Values for perlin noise
this.xOff = Math.random() * 6400;
this.yOff = Math.random() * 6400;
// Opacity is reduced as lifespan gets close to 0
this.opacity = 1;
// Added to velY every frame
this.gravity = options.gravity;
// Multiply with velocity every frame
this.drag = options.drag;
this.drag = options.drag;
}
_createClass(Particle, [
{
key: "update",
value: function update() {
// Add gravity force to the y velocity
this.velY += this.gravity;
// Add randomness with perlin noise
var randomX = noise.simplex2(this.xOff, 0);
var randomY = noise.simplex2(this.yOff, 0);
this.velX += randomX / (10 / options.randomness);
this.velY += randomY / (10 / options.randomness);
this.xOff += options.jitter;
this.yOff += options.jitter;
// // Apply drag
this.velX *= this.drag;
this.velY *= this.drag;
// And the velocity to the position
this.x += this.velX;
this.y += this.velY;
// Apply fade
this.opacity = this.lifespan / 100;
// Apply shrink
this.size -= options.shrinkSpeed;
this.size = Math.max(0, this.size);
// Update lifespan
this.lifespan -= 1;
if (this.size <= 0.1 || this.opacity <= 0.01) {
this.lifespan = 0;
}
}
},
{
key: "draw",
value: function draw() {
// set the fill style to have the right alpha
context.fillStyle = "rgba(" + this.color + ", " + this.opacity + ")";
// draw a circle of the required size
context.beginPath();
context.arc(this.x, this.y, this.size, 0, Math.PI * 2);
context.closePath();
// and fill it
context.fill();
}
}
]);
return Particle;
})();
function loop() {
// Clear the canvas
context.clearRect(0, 0, screenWidth, screenHeight);
// Update and draw paricles
ps.update();
ps.draw();
// RAF
requestAnimationFrame(loop);
}
function explode(el, x, y) {
var dialog = document.querySelector(".dialog");
var rect = dialog.getBoundingClientRect();
dialog.classList.remove("is-in");
ps.addParticle({
numToAdd: options.particlesPerPress,
x: x,
y: y,
leftSpread: x - rect.left,
rightSpread: rect.right - x,
topSpread: y - rect.top,
bottomSpread: rect.bottom - y
});
}
// Globals
var ps = void 0;
var context = void 0;
var mouseX = void 0;
var mouseY = void 0;
var isPointerPressed = false;
// Get screen size variables
var screenWidth = window.innerWidth;
var screenHeight = window.innerHeight;
var halfWidth = window.innerWidth / 2;
var halfHeight = window.innerHeight / 2;
function updateCanvasAndScreenVars() {
screenWidth = window.innerWidth;
screenHeight = window.innerHeight;
halfWidth = window.innerWidth / 2;
halfHeight = window.innerHeight / 2;
canvas.width = screenWidth;
canvas.height = screenHeight;
}
// Initialize
console.clear();
// Create Canvas element
var canvas = document.createElement("canvas");
context = canvas.getContext("2d");
$(".shaker").append(canvas);
updateCanvasAndScreenVars();
$(window).on("resize", updateCanvasAndScreenVars);
$("button").on("click", function(e) {
var shaker = document.querySelector(".shaker");
shaker.classList.add("is-shaking");
var dialog = document.querySelector(".dialog");
explode(dialog, e.pageX, e.pageY);
$(".dialog").hide();
$(".message").fadeIn(2000);
setTimeout(function() {
$(dialog).css("z-index", 1);
}, 200);
});
$("#stamp-footer").on("click", function(e) {
var message = document.getElementById("part-one-message");
message.scrollTop = 0;
$(".message").hide();
$(".dialog").show();
});
// Perlin Noise
noise.seed(Math.floor(Math.random() * 64000));
// Create Particle System
ps = new ParticleSystem();
loop();
